diff --git a/erpnext/patches/v8_0/update_stock_qty_value_in_bom_item.py b/erpnext/patches/v8_0/update_stock_qty_value_in_bom_item.py
index c872177e1f4..9e95eb0c23c 100644
--- a/erpnext/patches/v8_0/update_stock_qty_value_in_bom_item.py
+++ b/erpnext/patches/v8_0/update_stock_qty_value_in_bom_item.py
@@ -8,6 +8,6 @@ def execute():
 	frappe.reload_doc('manufacturing', 'doctype', 'bom_item')
 	frappe.reload_doc('manufacturing', 'doctype', 'bom_explosion_item')
 	frappe.reload_doc('manufacturing', 'doctype', 'bom_scrap_item')
-	frappe.db.sql("update `tabBOM Item` set stock_qty = qty, uom = stock_uom")
+	frappe.db.sql("update `tabBOM Item` set stock_qty = qty, uom = stock_uom, conversion_factor = 1")
 	frappe.db.sql("update `tabBOM Explosion Item` set stock_qty = qty")
 	frappe.db.sql("update `tabBOM Scrap Item` set stock_qty = qty")
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